200 A DESCRIPTIVE CATALOGUE OF THE 
sage Island; young specimens on dead Madrepores from three feet depth (Krebs); 
St. Jean, Vieque (Riise) ; Guadeloupe (Bean). 
This species, which is the most common in the West Indies, is generally con- 
sidered identical with allied species in the Mediterranean and Pacific. 
1. Scala pseudoscalaris, Brocchi, Desh., from the Mediterranean, differs by the 
shell being much narrower, the ribs equal, and the ambulacra nearly straight. 
2. Scala perplewa, Pease, Proc. Zool. Soc. 1860; Am. Journ. of Conch. iii, p. 
228; Desh. Moll. Reunion, p. 60, t. viii, f. 1, v. Martens Donum Bismarckianum, 
teaya- 19: 
Differs in having single high ribs alternating with pairs of lower ribs. 
26. SCALA CORONATA, Lam. 
T. tenuis, lineis spiralibus sub lente distinctissimis; anfr. perconvexi sutura constricta, costae xv 
—xvi in anfr. ult., lineares sed 1 vel 2 crassiores. Color albus, fasciis angustissimis 3 e mac- 
ulis obliquis compositis; faseia suturali angusta plerumque obsoleta. 
Long. 33 mm.; diam. 14 mm. 
Scalaria coronata, Lam., Enc. Méth. 1816, Pl. 451, f. 5; Lam. Hist. vi, p. 227, 
n. 3; Lam. Hist. ed. Desh. ix, p. 74, n. 3; Desh. Enc, Méth. iii, p. 930 (1832); 
Kiener, Spec. Gen. tab. 3, f. 8°; Sowb. Thes. p. 101, f. 133"; Bean, Cat. Moll. 
Guadel. p. 12. 
Hab. Antilles (Dr. Ravn. Com. Falsen, Nissen, Mrs. Eckardt); Guadeloupe 
(Bean). 
In the collection of Christian, VIII, are found five specimens from the above 
collectors about from the years 1833-39, but I am not aware that this shell has 
since been collected at the Danish Antilles. Kiener indicates Cape of Good Hope 
as the locality for this species, but no author has since confirmed this assertion. 
‘The figure in the Encyclop. Méth. is the best, showing the whorls very convex and 
the sutures deep. ‘The figures of Kiener and Sowerby show flat whorls like the 
preceding species. Mr. Deshayes indicates the number of ribs on the last whorl 
as 19-20. 
Sect, ***** Amoa, H. and A. Adams. 
27. SCALA (AM@A) TURRICULA, Sowb., Pl. 29, fig. 7. 
'T. obtecte perforata, turrita, gracilis, alba, fasciis 2 interruptis ferrugineis, spiraliter lirata; lire 
confertissime, ad regionem suturalem regulares, interstitia majora funiculis confertis munita; 
cost xii—xiii in anfr. ult., plerumque lineares simplices, ultima et penultima et hue illuc in 
anfr. spire crass, ad suturam spinula adunca munite. Apertura ovalis, peristomate con- 
tinuo ad umbilicum angulatum. 
Long. 15 mm.; diam. 6 mm. (Fragm. spm. maj.), diam. 7 mm, 
